Eh, you actually do see Paladins crop up a lot in groups that have a strong association with the Old Gods -- Twilight's Hammer, Skettis Arrakoa, etc -- due to their chaotic light/shadow (hence, twilight) nature. So Naga Paladins could work, indeed the Vashj'ir Battlemaiden is thematically much like a Ret Paladin with her own versions of Divine Storm, Supplication, arguably Inquisition. It would just further beg the question of why there aren't any Night Elf Paladin equivalents when all of their derivative races have them. This would be handwaved because they're still in denial over Elune's true nature.

OMG 13:37 - Then Jesus said to His disciples, "Cleave unto me, and I shall grant to thee the blessing of eternal salvation."